X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2FstgSyn%2FCoreToStg.lhs;h=2059937e0b5ab080b571a7f49dd434d839245533;hb=b7c488e42e6d93abbb78aa80eb8be60a928e966c;hp=c81edcd5b7551c2d32cb269331affabb38580eeb;hpb=162c7e780267c73495fb245a873f7e3b8431471b;p=ghc-hetmet.git

diff --git a/compiler/stgSyn/CoreToStg.lhs b/compiler/stgSyn/CoreToStg.lhs
index c81edcd..2059937 100644
--- a/compiler/stgSyn/CoreToStg.lhs
+++ b/compiler/stgSyn/CoreToStg.lhs
@@ -549,6 +549,8 @@ coreToStgApp _ f args = do
                                 -- All the free vars of the args are disqualified
                                 -- from being let-no-escaped.
 
+    -- Forcing these fixes a leak in the code generator, noticed while
+    -- profiling for trac #4367
     app `seq` fvs `seq` seqVarSet vars `seq` return (
         app,
         fvs,